21450122454435 has 8 divisors (see below), whose sum is σ = 34320195927120. Its totient is φ = 11440065309024.

The previous prime is 21450122454407. The next prime is 21450122454437. The reversal of 21450122454435 is 53445422105412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21450122454435 - 2⁹ = 21450122453923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21450122454437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715004081800 + ... + 715004081829.

It is an arithmetic number, because the mean of its divisors is an integer number (4290024490890).

Almost surely, 2^{21450122454435} is an apocalyptic number.

21450122454435 is a deficient number, since it is larger than the sum of its proper divisors (12870073472685).

21450122454435 is a wasteful number, since it uses less digits than its factorization.

21450122454435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430008163637.

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 21450122454435 its reverse (53445422105412), we get a palindrome (74895544559847).

The spelling of 21450122454435 in words is "twenty-one trillion, four hundred fifty billion, one hundred twenty-two million, four hundred fifty-four thousand, four hundred thirty-five".